'Death is so selfish baby girl. My heart is broken. I know you're in a better place, and yet no place is better than in my arms,' she wrote on her Facebook page.

'All I want back is our daily life, whatever they entailed, I want it back. I want hospital visits back, and chemo back, I want your laughter, and your joyous heart back. The things that brought my heart so much pain, only a few months ago, I so desperately want back today.

'Life's not fair baby girl, you know that better than anyone. I do know that your life brought me so much joy, and looking back, I'm thankful that I made sure to tell you every single day just how much I loved you.'